\begin{tikzpicture}
	\tkzDefPoints{0/0/D, 1/0/E, 1.7/0/F, 2.6/0/G}
	\tkzDrawSegment(D,G)
	\tkzDrawPoints[fill=black](D,E,F,G)
	\tkzLabelPoints[below](D,E,F,G)
\end{tikzpicture}

